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I used to be the biggest fan of T-Mobile. I had three all in lines for $100. I cancelled two of them and now I have just one T-Mobile one line and a prepaid unlimited. T-Mobile doesn't throttle prepaid lines unless you go over 50GB in congested areas.

Anyways, Here's a screenshot on T-Mobile one from my XS Max and the other from my Note 9 at around 7PM last night. I just can't recommend T-Mobile anymore. Here in Denver, the service is just plain bad unless you use it around 3AM, then I get over 100Mbps. The Note 9 is a T-Mobile purchased model and this XS Max is a unlocked model.

Screenshot_20190105-212541_Speedtest.jpg IMG_1539.PNG

Now here's AT&T on another XS Max that I have. This XS Max is a AT&T purchased phone. Again, these speed tests were all taken around 7PM last night in Denver Colorado, one above was after 9PM.

IMG_1838.PNG
 
I’m also in the Denver area and have zero T-Mobile service at my house. Here, it’s either Verizon and AT&T. After having a fight with AT&T, it’s only Verizon for us.
 
The most noticeable issue with T-mobile is they people running it are cheap as **** and won’t let anyone make any money except their own corp stores and dealers. This means you cannot find any T-Mobile iPhone deals anywhere and will always pay near MSRP or go on some ****** reverse contract bill credits scam T-Mobile is running

In terms of network, YMMV on your area but in general you get *exactly* what you pay for, VZW, ATT, sprint & t-mobile (soon to be one and the same) in that order
They have promotion in Costco
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I’m also in the Denver area and have zero T-Mobile service at my house. Here, it’s either Verizon and AT&T. After having a fight with AT&T, it’s only Verizon for us.
I had a fight and got a knock out by ATT, they shut down my service even I paid the fee at the beginning of the money.
Now I am with Tmobile
 
I may be one of the few on here that has done the opposite. I switched from T-Mobile to AT&T in October of last year. I haven't had any issues with them. Their customer service is friendly and nice, the coverage in a lot of areas is good as well. I did hear that some of friends were experiencing some outages occasionally but I have seen that. T-Mobile had great perks like T-Mobile Tuesday but I didn't like having to put down money for a device all while being a well qualified customer. I know that some customers have gotten that zero down perk after being with them for five or more years or so. Either way I have not had any issue with AT&T at all.
 
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